Home / 48,512.30-72,768.45-18,931.10

Finding the Fourth Proportional to 48,512.30, 72,768.45 and 18,931.10

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Solution

The fourth proportional to 48,512.30, 72,768.45 and 18,931.10 is: 28,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,512.30 : 72,768.45 = 18,931.10 : x
  2. Step 2: Convert to fraction form
    48,512.30/72,768.45 = 18,931.10/x
  3. Step 3: Cross multiply
    48,512.30x = 72,768.45 × 18,931.10
  4. Step 4: Simplify right side
    48,512.30x = 1,377,586,803.80
  5. Step 5: Solve for x
    x = 1,377,586,803.80/48,512.30
  6. Step 6: Final answer
    x = 28,396.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.